1821981700

素因数分解:

$2^2\times 5^2\times 7^3\times {\mathrm{11}}^2\times {\mathrm{439}}^1$

素因数の和:496

約数の個数: 216

約数和(自身を含む): 5079536000

約数和(自身を除く): 3257554300

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 49, 50, 55, 70, 77, 98, 100, 110, 121, 140, 154, 175, 196, 220, 242, 245, 275, 308, 343, 350, 385, 439, 484, 490, 539, 550, 605, 686, 700, 770, 847, 878, 980, 1078, 1100, 1210, 1225, 1372, 1540, 1694, 1715, 1756, 1925, 2156, 2195, 2420, 2450, 2695, 3025, 3073, 3388, 3430, 3773, 3850, 4235, 4390, 4829, 4900, 5390, 5929, 6050, 6146, 6860, 7546, 7700, 8470, 8575, 8780, 9658, 10780, 10975, 11858, 12100, 12292, 13475, 15092, 15365, 16940, 17150, 18865, 19316, 21175, 21511, 21950, 23716, 24145, 26950, 29645, 30730, 33803, 34300, 37730, 41503, 42350, 43022, 43900, 48290, 53119, 53900, 59290, 61460, 67606, 75460, 76825, 83006, 84700, 86044, 94325, 96580, 106238, 107555, 118580, 120725, 135212, 148225, 150577, 153650, 166012, 169015, 188650, 207515, 212476, 215110, 236621, 241450, 265595, 296450, 301154, 307300, 338030, 371833, 377300, 415030, 430220, 473242, 482900, 531190, 537775, 592900, 602308, 676060, 743666, 752885, 830060, 845075, 946484, 1037575, 1062380, 1075550, 1183105, 1327975, 1487332, 1505770, 1656347, 1690150, 1859165, 2075150, 2151100, 2366210, 2602831, 2655950, 3011540, 3312694, 3380300, 3718330, 3764425, 4150300, 4732420, 5205662, 5311900, 5915525, 6625388, 7436660, 7528850, 8281735, 9295825, 10411324, 11831050, 13014155, 15057700, 16563470, 18219817, 18591650, 23662100, 26028310, 33126940, 36439634, 37183300, 41408675, 52056620, 65070775, 72879268, 82817350, 91099085, 130141550, 165634700, 182198170, 260283100, 364396340, 455495425, 910990850, 1821981700]

約数ペア:

[(1, 1821981700), (2, 910990850), (4, 455495425), (5, 364396340), (7, 260283100), (10, 182198170), (11, 165634700), (14, 130141550), (20, 91099085), (22, 82817350), (25, 72879268), (28, 65070775), (35, 52056620), (44, 41408675), (49, 37183300), (50, 36439634), (55, 33126940), (70, 26028310), (77, 23662100), (98, 18591650), (100, 18219817), (110, 16563470), (121, 15057700), (140, 13014155), (154, 11831050), (175, 10411324), (196, 9295825), (220, 8281735), (242, 7528850), (245, 7436660), (275, 6625388), (308, 5915525), (343, 5311900), (350, 5205662), (385, 4732420), (439, 4150300), (484, 3764425), (490, 3718330), (539, 3380300), (550, 3312694), (605, 3011540), (686, 2655950), (700, 2602831), (770, 2366210), (847, 2151100), (878, 2075150), (980, 1859165), (1078, 1690150), (1100, 1656347), (1210, 1505770), (1225, 1487332), (1372, 1327975), (1540, 1183105), (1694, 1075550), (1715, 1062380), (1756, 1037575), (1925, 946484), (2156, 845075), (2195, 830060), (2420, 752885), (2450, 743666), (2695, 676060), (3025, 602308), (3073, 592900), (3388, 537775), (3430, 531190), (3773, 482900), (3850, 473242), (4235, 430220), (4390, 415030), (4829, 377300), (4900, 371833), (5390, 338030), (5929, 307300), (6050, 301154), (6146, 296450), (6860, 265595), (7546, 241450), (7700, 236621), (8470, 215110), (8575, 212476), (8780, 207515), (9658, 188650), (10780, 169015), (10975, 166012), (11858, 153650), (12100, 150577), (12292, 148225), (13475, 135212), (15092, 120725), (15365, 118580), (16940, 107555), (17150, 106238), (18865, 96580), (19316, 94325), (21175, 86044), (21511, 84700), (21950, 83006), (23716, 76825), (24145, 75460), (26950, 67606), (29645, 61460), (30730, 59290), (33803, 53900), (34300, 53119), (37730, 48290), (41503, 43900), (42350, 43022)]